On November 20, Al Jazeera’s Correspondent series will investigate the impact of commercialisation on the spiritual practise of yoga. With over 20 million American practitioners, the global yoga market is estimated to be worth several billion dollars. Twenty-seven billionis spent annually on yoga products in the United States alone.

Spiritual writer Deepak Chopra has dismissed the campaign, arguing that yoga is linked to ancient Vedic culture, “the first written spiritual tradition in the world”, long before it became associated with Hinduism.